Table 2.
Summary Characteristics of Families
| Number (%) | |
|---|---|
| Generations of known affected | |
| 2 | 13 (6.5) |
| 3 | 72 (36.0) |
| 4 | 65 (32.5) |
| 5 or more | 50 (25.5) |
| Unknown | 0 |
| Number of known affected | |
| 2-4 | 64 (32.0) |
| 5-10 | 88 (44.0) |
| 11-20 | 37 (18.5) |
| >20 | 11 (5.5) |
| Unknown | 0 |
| Male-to-male transmission | |
| No | 91 (45.5) |
| Yes | 108 (54.0) |
| Unknown | 1 (0.5) |
| Skipped generations | |
| 0 | 150 (75.0) |
| 1-2 | 47 (23.5) |
| >2 | 2 (1.0) |
| Unknown | 1 (0.5) |
| Odds adRP v. XIRP | |
| ≥103 | 143 (71.5) |
| 10-102 | 33 (16.5) |
| 1-10-1 | 21 (10.5) |
| ≤10-2 | 3 (1.5) |
| Unknown | 0 |
| Ethnicity | |
| Asian | 7 (3.5) |
| African American | 6 (3.0) |
| White | 146 (73.0) |
| Hispanic | 14 (7.0) |
| Other | 4 (2.0) |
| Unknown | 23 (11.5) |
N = 200.